NPPES file of Aug 9, 2026

Richard Riemersma, M.D.

Specialist · Bangor, ME

Richard Riemersma, M.D. is a specialist with a practice address in Bangor, Maine, and NPI 1952321507, issued on Jul 19, 2006. Check the license (Maine 012353, as entered in NPPES) with the Maine board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1952321507
Name
Richard Riemersma
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
012353 ME
Self-reported in NPPES; status is on the state search
Practice location
417 State St Ste 439, Bangor, ME 04401
Phone
(207) 561-2400
Enumerated
Jul 19, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(207) 990-4848
Medicare enrollment
Enrolled (PECOS I20070112000235); accepts Medicare assignment
Medical or professional school
Hahnemann University College Of Medicine, 1982
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 417 State St Ste 439

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Orin Buetens, M.D.Specialist1831115930
  2. Frederick Eyerer, MDAnatomic Pathology & Clinical Pathology Physician1104320696
  3. George Eyerer, M.D.Specialist1881610822
  4. Chelsey Gracia, D.O.Anatomic Pathology & Clinical Pathology Physician1801201967
  5. Irwin Gross, M.D.Specialist1730109117
  6. John Kaiser, M.D.Specialist1053331637

Verify Richard Riemersma in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maine board licenses this profession
    Search for license 012353
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Maine license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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The practice group's MIPS final score for 2023 (Medicare payment program): 93.7 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score81.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $18.42

1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Richard Riemersma$18.42
  2. Specialty average$4,760.79

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Dahl Chase Pathology Associates PABangor, ME

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Richard Riemersma among 248 specialist records in Maine

Richard Riemersma, M.D. is one of 248 specialist records with a practice address in Maine. 16% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 60% newer
  • In a Medicare fileYes · 16% of these records are
  • In the CMS Doctors and Clinicians fileYes · 13% of these records are
  • Graduated1982 · median 1992 among the 32 with a school on file
  • Record last updated2007 · 87% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Specialist providers in Maine

There are 248 specialist records in Maine.

The 8 specialist records with the nearest ZIP codes

  1. John Bradford, M.D.Bangor, ME 044011093791964
  2. Orin Buetens, M.D.Bangor, ME 044011831115930
  3. Eric Cormier, MSPTBangor, ME 044011851347397
  4. Robert Gause, MDBangor, ME 044011861486052
  5. James Greene, MDBangor, ME 044011699769893
  6. William Horner, M.D.Bangor, ME 044011942266416
  7. Peter Huang, M.D.Bangor, ME 044011811953375
  8. Tracey Hughes, M.D.Bangor, ME 044011205870789

Common questions

What is Richard Riemersma, M.D.'s NPI number?

Richard Riemersma, M.D.'s National Provider Identifier (NPI) is 1952321507, issued on Jul 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Richard Riemersma, M.D. located?

The NPPES record lists a practice address at 417 State St Ste 439, Bangor, ME, 04401. Phone: (207) 561-2400. Providers update this record themselves, so call before visiting.

How can I verify Richard Riemersma, M.D.'s license?

NPPES lists Maine license number 012353, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.

What is Richard Riemersma, M.D.'s MIPS final score?

The 2023 MIPS final score is 93.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.